Finding the Third Proportional to 30,698.16 and 67,848.38

Step by Step Solution

1. Step 1: Write the proportion equation
   30,698.16 : 67,848.38 = 67,848.38 : x
2. Step 2: Convert to fraction form
   30,698.16/67,848.38 = 67,848.38/x
3. Step 3: Cross multiply
   30,698.16x = 67,848.38 × 67,848.38
4. Step 4: Simplify right side
   30,698.16x = 4,603,401,990.14
5. Step 5: Solve for x
   x = 4,603,401,990.14/30,698.16
6. Step 6: Final answer
   x = 149,956.95